p42_020 - by P = Ne E g /kT = M e m N A e E g /kT = 5 . 98...

20. The molar mass of carbon is m =12 . 01115 g / mol and the mass of the Earth is M e =5 . 98 × 10 24 kg. Thus, the number of carbon atoms in a diamond as massive as the Earth is N =( M e /m ) N A ,where N A is the Avogadro constant. From the result of Sample Problem 42-1, the probability in question is given

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